bbacff94d0
It's convenient for userspace (in particular, glibc) to find a definition of MAP_STACK. We use MAP_GROWSDOWN as an alias since that's appropriate for the main stack, and since our current allocation of mmap flags bits is running a bit short otherwise. Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
41 lines
1.4 KiB
C
41 lines
1.4 KiB
C
/*
|
|
* Copyright 2010 Tilera Corporation. All Rights Reserved.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation, version 2.
|
|
*
|
|
* This program is distributed in the hope that it will be useful, but
|
|
* WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
|
|
* NON INFRINGEMENT. See the GNU General Public License for
|
|
* more details.
|
|
*/
|
|
|
|
#ifndef _ASM_TILE_MMAN_H
|
|
#define _ASM_TILE_MMAN_H
|
|
|
|
#include <asm-generic/mman-common.h>
|
|
#include <arch/chip.h>
|
|
|
|
/* Standard Linux flags */
|
|
|
|
#define MAP_POPULATE 0x0040 /* populate (prefault) pagetables */
|
|
#define MAP_NONBLOCK 0x0080 /* do not block on IO */
|
|
#define MAP_GROWSDOWN 0x0100 /* stack-like segment */
|
|
#define MAP_STACK MAP_GROWSDOWN /* provide convenience alias */
|
|
#define MAP_LOCKED 0x0200 /* pages are locked */
|
|
#define MAP_NORESERVE 0x0400 /* don't check for reservations */
|
|
#define MAP_DENYWRITE 0x0800 /* ETXTBSY */
|
|
#define MAP_EXECUTABLE 0x1000 /* mark it as an executable */
|
|
#define MAP_HUGETLB 0x4000 /* create a huge page mapping */
|
|
|
|
|
|
/*
|
|
* Flags for mlockall
|
|
*/
|
|
#define MCL_CURRENT 1 /* lock all current mappings */
|
|
#define MCL_FUTURE 2 /* lock all future mappings */
|
|
|
|
|
|
#endif /* _ASM_TILE_MMAN_H */
|